Removal of Phosphorus and Cadmium from Wastewaters by Periphytic Biofilm
Phosphorus (Pi) and cadmium (Cd) contamination in water sources pose significant health risks and environmental concerns. Periphytic biofilms have been recognized for their ability to effectively remove these contaminants from aquatic environments. This study aimed to investigate the impact of photo...
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MDPI AG
2023-09-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/18/3314 |
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| author | Jin Zhang Yawei Liu Jiajia Liu Yu Shen Hui Huang Yongli Zhu Jiangang Han Haiying Lu |
| author_facet | Jin Zhang Yawei Liu Jiajia Liu Yu Shen Hui Huang Yongli Zhu Jiangang Han Haiying Lu |
| author_sort | Jin Zhang |
| collection | DOAJ |
| description | Phosphorus (Pi) and cadmium (Cd) contamination in water sources pose significant health risks and environmental concerns. Periphytic biofilms have been recognized for their ability to effectively remove these contaminants from aquatic environments. This study aimed to investigate the impact of photon and electron treatments on Pi and Cd removal by periphytic biofilms. The experiments spanned a monthly timeframe, focusing on how photon and electron treatments affected the contaminant removal efficiency of periphytic biofilms. The results revealed that while the introduction of electrons had a minimal impact on contaminant accumulation, the enhancement of photon exposure significantly improved the absorption capacity of periphytic biofilms. This, in turn, led to enhanced removal of Pi and Cd from the water. One possible explanation for this phenomenon is that photons played a crucial role in inducing nitrate and ammonium conversion, thereby facilitating the accumulation of 4.70 mg kg<sup>−1</sup> Pi and 2.40 mg kg<sup>−1</sup> Cd in periphytic biofilms. In contrast, electron treatment had limited effects on nitrate conversion. These findings provide valuable insights into the mechanisms underlying the removal of water contaminants by periphytic biofilms under the influence of electron and photon treatments. Furthermore, they have practical implications for improving pollutant removal capabilities in aquatic ecosystems using periphytic biofilms. |
| first_indexed | 2024-03-10T21:50:48Z |
| format | Article |
| id | doaj.art-a959eaa21d2c40fd9059b9884749ccd0 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T21:50:48Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-a959eaa21d2c40fd9059b9884749ccd02023-11-19T13:26:54ZengMDPI AGWater2073-44412023-09-011518331410.3390/w15183314Removal of Phosphorus and Cadmium from Wastewaters by Periphytic BiofilmJin Zhang0Yawei Liu1Jiajia Liu2Yu Shen3Hui Huang4Yongli Zhu5Jiangang Han6Haiying Lu7Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, ChinaCo-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, ChinaEnvironmental Engineering College, Nanjing Polytechnic Institute, Nanjing 210044, ChinaCo-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, ChinaCo-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, ChinaCo-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, ChinaCo-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, ChinaCo-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, ChinaPhosphorus (Pi) and cadmium (Cd) contamination in water sources pose significant health risks and environmental concerns. Periphytic biofilms have been recognized for their ability to effectively remove these contaminants from aquatic environments. This study aimed to investigate the impact of photon and electron treatments on Pi and Cd removal by periphytic biofilms. The experiments spanned a monthly timeframe, focusing on how photon and electron treatments affected the contaminant removal efficiency of periphytic biofilms. The results revealed that while the introduction of electrons had a minimal impact on contaminant accumulation, the enhancement of photon exposure significantly improved the absorption capacity of periphytic biofilms. This, in turn, led to enhanced removal of Pi and Cd from the water. One possible explanation for this phenomenon is that photons played a crucial role in inducing nitrate and ammonium conversion, thereby facilitating the accumulation of 4.70 mg kg<sup>−1</sup> Pi and 2.40 mg kg<sup>−1</sup> Cd in periphytic biofilms. In contrast, electron treatment had limited effects on nitrate conversion. These findings provide valuable insights into the mechanisms underlying the removal of water contaminants by periphytic biofilms under the influence of electron and photon treatments. Furthermore, they have practical implications for improving pollutant removal capabilities in aquatic ecosystems using periphytic biofilms.https://www.mdpi.com/2073-4441/15/18/3314periphytic biofilmphosphoruscadmiumphotonelectron |
| spellingShingle | Jin Zhang Yawei Liu Jiajia Liu Yu Shen Hui Huang Yongli Zhu Jiangang Han Haiying Lu Removal of Phosphorus and Cadmium from Wastewaters by Periphytic Biofilm Water periphytic biofilm phosphorus cadmium photon electron |
| title | Removal of Phosphorus and Cadmium from Wastewaters by Periphytic Biofilm |
| title_full | Removal of Phosphorus and Cadmium from Wastewaters by Periphytic Biofilm |
| title_fullStr | Removal of Phosphorus and Cadmium from Wastewaters by Periphytic Biofilm |
| title_full_unstemmed | Removal of Phosphorus and Cadmium from Wastewaters by Periphytic Biofilm |
| title_short | Removal of Phosphorus and Cadmium from Wastewaters by Periphytic Biofilm |
| title_sort | removal of phosphorus and cadmium from wastewaters by periphytic biofilm |
| topic | periphytic biofilm phosphorus cadmium photon electron |
| url | https://www.mdpi.com/2073-4441/15/18/3314 |
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